Question

x^2 +4x+m is a comlete square ?find m.

Answer 1

Answer:

m=4

Step-by-step explanation:

Given

x^2+4x+m, a=1,b=4,c=m

we know that discrimination of quadratic equation

is given by

D=b^2-4ac

4^2-4(1)c=0

16-4c=0

- 4c= - 16

c= - 16/- 4

c= 4